Open Chrome or Firefox. I now recommend Chrome over Firefox. (BigTree CMS doesn't work well in Internet Explorer. But Mac users can also choose to use Safari.)
Go to www.pugetsound.edu/admin.
Log in using your regular Puget Sound username and password.
The CMS should open in the browser window, displaying the Dashboard. Once logged in, you can navigate through the CMS to perform edits OR surf the regular site in that browser where you should now see a blue BigTree bar at the top of your window allowing you to jump directly into edit mode on any page you have permissions for while browsing the site.
If you don't want the whole blue bar open all the time, you can click the X on the far right of the blue bar (not shown in this image) to minimize the bar to show just a blue tab with the BigTree icon. When you find a page you want to edit, just click the tab to expand the bar, and then choose if you just want to edit the content in place, or if you need to open the whole page in BigTree for more complex edits.